The researchers studied the distribution of red tide organisms in Zhanjiang Bay, China, in different seasons. They found 126 species, with most belonging to Bacillariophyta. The abundance of these organisms varied throughout the year, with the highest in spring. Certain species dominated in different seasons. The abundance of red tide organisms was linked to factors like chlorophyll levels, temperature, and salinity. Overall, the red tide organisms did not reach levels that would cause a red tide outbreak in the bay.